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"I think children are naturally curious and open to new ideas, and that's something I try to capture in my books."
PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。
When you do something best in life, you don’t really want to give that up – and for me it’s tennis.
故事不只是被讲述;它被那些阅读它的人所经历。